Lantern



FIG. 1 is a front view of a lantern having my new design;

FIG. 2 is a side view thereof,

FIG. 3 is a rear view thereof,

FIG. 4 is an opposite side view thereof,

FIG. 5 is a top plan view thereof, and

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a lantern, as shown and described. 